diff --git a/UPDATING b/UPDATING
index 60da2227df36..d41f9312873b 100644
--- a/UPDATING
+++ b/UPDATING
@@ -31,6 +31,18 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 10.x IS SLOW:
 	disable the most expensive debugging functionality run
 	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20130516:
+	Use bmake by default.
+	Whereas before one could choose to build with bmake via
+	-DWITH_BMAKE one must now use -DWITHOUT_BMAKE to use the old
+	make. The goal is to remove these knobs for 10-RELEASE.
+
+	It is worth noting that bmake (like gmake) treats the command
+	line as the unit of failure, rather than statements within the
+	command line.  Thus '(cd some/where && dosomething)' is safer
+	than 'cd some/where; dosomething'. The '()' allows consistent
+	behavior in parallel build.
+
 20130429:
         Fix a bug that allows NFS clients to issue READDIR on files.